caa a22 4500 445867531 CHVBK 20180317145502.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1140/epjd/e2011-20029-0 doi (NATIONALLICENCE)springer-10.1140/epjd/e2011-20029-0 Quenching vibrations of cesium dimers by He at low and ultralow temperatures: quantum dynamical calculations [Elektronische Daten] [D. Caruso, M. Tacconi, E. Yurtsever, S. Bovino, F. Gianturco] This paper analyses in detail the energy redistribution from the upper vibrational levels of Cs dimers, thought to be obtained from initial recombination processes that generate excited internal states of the triplet configuration 3 Σ u + . Their quenching is examined as they are made to further collide with 4He buffer gas at temperatures below and around 100 mK. The relevant cross sections are computed by using a multichannel quantum dynamical approach and employ a full, ab initio potential energy surface. Due to their smallness (see Ref. [R.B. Ross, J.M. Powers, T. Atashroo, W.C. Ermler, I.A. LaJohn, P. Christiansen, J. Chem. Phys. 93, 6654 (1999)]) the fine structure effects have not been explicitly included in this study. The final, cumulative cross-sections are discussed and analyzed in terms of the overall quenching behavior shown by different initial states of the dimer and in terms of the changing ratios between collisional cooling and vibrational quenching cross sections as a function of trap temperature. The corresponding quenching rates are also computed and analysed. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 Caruso D. Department of Chemistry and CNISM, "Sapienza” University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy aut Tacconi M. Department of Chemistry and CNISM, "Sapienza” University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy aut Yurtsever E. Department of Chemistry, Koç University, Rumelifeneriyolu, 34450, Sariyer, Istanbul, Turkey aut Bovino S. Department of Chemistry and CNISM, "Sapienza” University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy aut Gianturco F. Department of Chemistry and CNISM, "Sapienza” University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy aut The European Physical Journal D Springer-Verlag 65/1-2(2011-11-01), 167-175 1434-6060 65:1-2<167 2011 65 10053 https://doi.org/10.1140/epjd/e2011-20029-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2011-20029-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Caruso D. Department of Chemistry and CNISM, "Sapienza” University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy aut NATIONALLICENCE 700 1- Tacconi M. Department of Chemistry and CNISM, "Sapienza” University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy aut NATIONALLICENCE 700 1- Yurtsever E. Department of Chemistry, Koç University, Rumelifeneriyolu, 34450, Sariyer, Istanbul, Turkey aut NATIONALLICENCE 700 1- Bovino S. Department of Chemistry and CNISM, "Sapienza” University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy aut NATIONALLICENCE 700 1- Gianturco F. Department of Chemistry and CNISM, "Sapienza” University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 65/1-2(2011-11-01), 167-175 1434-6060 65:1-2<167 2011 65 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer